Review request for 7021939 "com.oracle.net is not a NON_CORE_PKGS"

[Mandy Chung]

  7021939: com.oracle.net is not a NON_CORE_PKGS

Webrev at:
    http://cr.openjdk.java.net/~mchung/7021939/webrev.00/

It's a simple clean up.

make/docs/NON_CORE_PKGS lists the package names of the non-core API
whose javadoc will be generated and included in the docs bundle.
com.oracle.net is not a non-core package and no javadoc needs to be
generated.  Instead it should be included in generating ct.sym so that
the javac compiler will allow the use of this package.

Thanks
Mandy